Valve.



R. E. WARD & C. CROWL.

VALVE. APPLIGATION FILED 1,111.30, 1913.

1,104,944. Patented July 28, 1914 THE NQERIS PETERS OJ.. PHDTDJJTHO.. WASHIHGDN. D. C

uniTED sTATEs PATENT oEEroE.A y

.RAYMOND EAEE- wann AND CHARLES onowL, vor Eas'T EALESTINE, omo. i

VALVE.

incase/af.

yThe invention has particular application to pumps for water, clay, and the like', and

is so described in thisspeciication, although it is not so limited. C

The objects of the invention are: First: to simplify the valve, render it rugged and strong in construction, and composed of few parts. Second: to accommodate irregularities in setting uppthe valves and their operating mechanism. Third: to combine two valves with a pump or similar apparatus, so that the pressures will be balanced, Vand to operate the said valves by positive, although simple, mechanism. Fourth to provide an automatic device for taking up wear. Fifth: to take the" place of puppet valvesin pumps and the like, and overcome the objections of such valves. These and further objects will more fully appear from the `following specin fication and accompanying drawings, considered together or separately. y

Tn the drawingsz-Figure l is a planview of two valves, embodying the inventiomuse'd in connection with a pump. Fig. 2 is a side elevation of the same. Fig. Sis a longitudinal section of an inlet valveembodying the invention, shown in Figs. l and 2, onpan enlarged scale. Fig. 4 is a cross-section of the same, taken on the line 4 4 of Fig.` Fig. 5 is a similar view, but with' the parts in a different position. Fig. 6 is a sectional'view of the valve shown-in Fig. 3, but at right angles thereto, and Fig. y'' is a longitudinal section of an outlet valve.

In all of the views, like parts are designated by similar reference characters.

Referring to the drawings, it will be seen that the new valve' is shown in connection with a pump.

In Figs. l and 2, the complete apparatus comprises the inlet valve a, outlet valve ib, pump cylinder c, and steam cylinder the latter being connected to the piston rod e, and reciprocating the latter. The inlet pipe specificati@ of Letters Patent. y Patented July 23, 1914, Application led January 3G, 1913i ISerial No. 745,077. ,l

is' connected to the' inlet valve a', and the outlet pipe g to the outlet valve b. 'The inlet valve a is connected to the pump cylinder c by means of a pipe z., while the cylinde-r is connected to the outlet valve Z) by a pipe The liquid is drawn intothe pumpk cylinder through the kpipes f, valve a and pipe h, and

1 expelled through the pipe z', valve?) and pipe t g. To permit this'to be done, each valve has a barrel or moving member with a port,

whi'ch is broughtrinto coincidence with a port in itsbody-at the proper moment, the inlet .Valva .beingopen 'during the, suction stroke, while the outlet valve is open during Athe'expelling stroke of thepump. AThe details of each valve are as follows, each valve beingsubstantially alike The inlet valvey iwillnrst be described. The valve comprises *Ala body l, preferably cylindrical in shape, open at each end, and having flanges as shown, for the attachment of the heads. The body `isshown as supported by means of a foot 2. At one end of the body is thev head 3. This head is connected tothe inletpipe f, or z', as depends upon whether it is the inlet or outlet valve. To the other end of the body isattached the head 4. The;

head 4 of the inlet valve, and the head Sof the outlet valve is each provided with a gland or stuffing box 5. Within the body is the drum orbarrel 6, making a close nt with the interior ofthe body. The barrel has a port 7, extending through it. We prefer to make the barrel hollow as shown, to reduce weight'and cost. This port 7 communicates with a kpo-rtS in the head 3, which communi-y cates with the inlet'pipe f, or c', as depends `upon whether the valve is rthe inlet or outlet valx'fe.- The drum 6' is given a partial rotary movement,y for the purpose of bringingfthe ports 7 and 8 into and' out of'coincidenceby means of a shaft 9. This shaft passes through the `stuffingloo-X 5in the head 3 0r .4, ,and is connectedto the drums 6 6.

Where two lvalves areused, as shown, theyy are connectedone `to each end ,of the shaft. To make a connection which will be self-` alining, and will be cheap and durable, each end of the shaft 'is provided with ya crosshead l0, which rests in a groove or notch in thebarrel or drum 6. This notch is longer thanv the cross-head, and is also deeper, so that it may have some movement, so that the shaft need not be in exact alinement with the center of the body or barrel, nor is it necessary that the two valves be eXactly spaced valve.

in relation to one another. The barrel partalres of a swivel motion, and hence permits itself to adjust itself to the surface of the contacting head. Each barrel is shorter than the inside length of the body, so that a chamber 11 is left at one end of the barrel. In this chamber is a diaphragm 12, which makes a close fit with the inside of the body and engages with the end of the barrel. This diaphragm is caused to engage with the barrel by means of the spring 18. ln the inlet valve, the shaft 9 passes through the center of the diaphragm, so that it may rotate without rotating the latter. The diaphragm has a port 14, in line with the port 8. The principal object of the diaphragm is to maintain a perfect face upon each end of the barrel. To prevent rotary movement of the diaphragm, which would disaline the ports .8 and-14, a key 15 is provided, which slides in slots in the inside of the body, and in an extension 16 on the diaphragm. The chamber 11 is'connect-ed to the pipe or g, by means of a port 17. All of the joints within the body are A preferably ground joints, to prevent leakage.

Eer the purpose of rotatingthe shaft so that the valves are operated properly, the following mechanism is employed: The shaft 9 carries a lever 18, which is connected to a bell crank 19. A rod 20, sliding in bearings so that it is parallel to the piston rod e is connected to the bell crank, so that. upon its being alternately reciprocated, it will swing the bell crank upon its pivot, and thus alternately rotate the shaft 9 in one or the other direction for a period of a revolution sufcient'to entirely open and close each The rod 20 is screw-threaded, as shown,rfor attachment of nuts 21 and 22, which form adjustable abutments for the arm 23 to alternately engage against, suoli arm being carried by the piston rod e. This structure permits adjustment so that the barrels may be completely reversed upon the first and last half inch (approximately) of piston stroke. Tn order to aord an einer# gency release to the mechanism should any solid object become lodged between the ports of either contacting flange, and that of the oscillating barrel, while the barrel is in the act of revolving to close, we provide a rigid spring 24 inserted in the rod 20 to allow for this.v

The operation of the complete apparatus is apparent from the foregoing description.

The discharge in each valve is through the chamber 11, thus equalizing the pressure upon the entire diaphragm. The valves may be used singly and in other situations than that described.

The valve has a large field of utility. as it may be employed with hot and cold water, steam, oil, clay and other liquids and semiliquids. The valve is particularly applicable to the clay industry, taking the place of the spring and clapper valve, which has proven very ineihcient, our valve permitting a rapid cut-olf.

In accordance with the provisions of the patent statutes, we have described the principle of our invention, together with the apparatus which we now consider to represent the best embodiment thereof; butwe desire to have it understood that the apparatus shown ismerely illustrative and that the invention may be carried out in other ways.

Having now described our invention, what we claim as new and desire to secure by Letters Patent, is

1. The combination with two valves, and apump cylinder, each valve having a body, a barrel therein, a port within the barrel, a single shaft connecting the two barrels, and connections between the cylinder and the valves for opening and closing the latter.

2. The combination with a valve body, a barrel therein occupying less than the entire length ofthe body and having a passage therethrough, thereV being an outlet port from and an inlet port to the body, a pivoted device within the body, and between the barrel andthe inlet port, said device being held against rotary movement, and means for lyieldingly engaging the device with the body.

This specification signed and witnessed this 23d day of January, 1913.

RAYMOND EARL. WARD. CHARLES CROWL.

Vxitnesses RN. LOGAN, CLYon D. BRITTAIN.

Copies of this patent may be obtained for ve cents each, by adclressing the Commissioner of Patents, Washington, D. C. 

